Spindle-whirl lock



cap spinning frame, showing the whirl and UNITED STATES HARRY SLATER, OF METHUEN, MASSACHUSETTS.

SPINDLE-winni; Loox.

Specification of Letters Patent.

Patented Mar. 1, 179721.

`Application led June 30, 1920. Serial No. 393,012.

Z 1o @ZZ whom t may concern,

Be it known that I, HARRY SLATER, a citizen of Great Britain, residing at Methuen, in the county of Essex and State of Massachusetts, have invented certain new and us ful Improvements in Spindle-lVhirl Locks, of which the following is a specification.

This invention relates to whirl locks for cap spinning frames such as'aie used particularly for spinning worsted yarn.

In suoli frames, there are a plurality of fixed oi. lead'spiiiclles, each of which carries at the top a cap. Each of these spindles passes through the lifter plate, and 'each carries a bobbin tube, which carries a bob'- bin and has lixed at the bottom a whirl. rlhe lifter plate raises and lowers the whirl, the tube, and the bobbin as the yarn is built up. Between the bottom ofy the tube or whirl and the lifter plate, there is generally an annular friction washer, and at the top of the whirl is a tooth which engages a slot from the bobbin to insure that the bobbin will revolve.

In such frames there is generally a fly board, in sections, containingperhaps eight eyes, directly over the caps, and when removing a single cap and bobbin for dofiing, or otherwise, if the bobbin sticks to the tube, as frequently happens, both the tube and whirl, and also the friction washer, are re` moved with the bobbin. In such case, the friction washer often drops on theground and its recovery causes delay. The lop'eraf tive should seize the whirl with the right hand and hold it down while he frees the bobbin with the left hand. In so doing, often the hand with the bobbin comes up sharply, striking the fly board and breaking six or eight ends. l

I am aware that various devices have been used for locking spindles and whirls inV position, but my device Vcan be instantly attached to an old cap spinning frame without boring holes, filing, or otherwise touching it, and can be instantly removed. `By

Aits use the operative can. remove the cap and bobbin with the left hand', and put on an empty bobbin with the right hand, thus saving time.

In the drawings, Figure l is an elevation partly in section of a spindle, bobbin, whirl, cap, fly board, and lifter plate of a worsted friction washer raised and my lock in its first position as it is placed on the plate.

Fig. 2 is a section looking down on the Vline 2-2 of Fig. l.

to Fig.

similar to Fig. 4, showinghow the friction washer can be omitted.

Fig. 6 is a sectional view vtaken below the whirl showing a modification of my lock. in position. Y

F ig. 7 isa sectional 'view from the right on line 7 7 of Fig. 6.

In the drawings, represents part of a capvspinning frame, B is a1f1y board attached thereto by hinges such as 10 and having guide eyes such as 11. Sshows a dead spindle attached at the bottom 13 to Yanother part of the frame A in a well known manner which it is not necessaryto show. The cap C is carried'by the top l2 of spindle S and serves to guide the roving R on to the bobbin G in a well Vknown manner. L is the lifter plate, K is a friction washer which rests thereonand has an axis which substantiallyfcoincides with that of spindle S. F is a bobbin tube adapted to revolve4 on spindle S having at the bottom a whirl W' which comprises the base 20, flanges 2l and 22, and a pulley section 23 between the, fianges to receive the driving band. At the top, the whirl has teeth 24: which fit into.

a slot 14 in the bottom of a bobbin G which is slipped over *bobbin tube F- in a kwell known manierl All the above parts lare old and well known.

My whirl lock II comprises a flat base 30 adapted to rest on lifter plate L and has a slot 31 of a size to pass by the spindle S from the position shown in Fig. 2 to that shown in Fig. 3. 'It also has an annular groove 32, the axis of which, when inposi# tion, coincides with the spindle axis and is preferably adapted to vreceive the friction washer K or another similar washer in place thereof which serves as an annular bolt member slidable on the spindle-to fit into annular groove 32. v

Extending upwardly from`base30, clearing the lower flange 22, is the upwardly extending stop finger 33 which extends in at 34 so that, when in position, the lower flange 22 of the whirl W will strike it if it is attempted to remove the bobbin tube with the whirl. Extending downward from base 30 is a foot 35 having a toe 36 which eX- tends under lifter plate L, as clearly shown in Fig. 4.

As shown in Fig. 5, the base 20 of the whirl IV may be made of such a size as to fit into annular groove 32 in lock I-I, thus serving as an annular bolt member slidable on the spindle to hold the lool: in position.

The annular groove 32, and either washer K or said base 20, may be considered means to hold the whirl lock in position.

As shown in Figs. 6 and 7, the lock M may have the finger 33 and foot 34, while the base 40 may have a slolt 4:1 at the back instead of at the side, and instead of an annular groove may have an annular upwardly projecting neck 12 which is also open at the back to coincide with slot 41.

In this oase the friction washer or annularbolt member 4:3 slips down over neck 12, these two serving as means to hold the whirl lock in position.

Neck 42 or groove 32 may be regarded as an annular locking member, and base 20,

Awashers K or 4:3 as annular bolt members.

I prefer the slot in the right or left rather than the back side because the washer somotimes lits with the whirl and the lock is more easily shaken out of position when the slot is at the back. I prefer a steel or box- Y Wood annular bolt member to reduce friction and to take the wear, rather than the base of the whirl.

To put ythe look I-I in position, it is slipped on :the rail as shown in Fig. 1, Ithe Washer and whirl are lifted until the end 34 of stop finger 33 is between iianges 21 and 22, lock H is slipped up to spindle S and the washer or base is dropped into the annular groove. It is removed in the reverse manner.

I claim:

1. The combination in a cap spinning frame having a lifter plate, a spindle and a bobbin tubeV having a Whirl slidable on said spindle, of a whirl lock comprising' a flat base adapted to rest on the lifter plate having a slot of a size to pass by the spindle and an annular groove in the top, the axis oi" which coincides with the spindle axis, a stop finger extending upward and inward to a point over part of the whirl, and a foot which extends down and under Vthe `iiiter plate, with an annular boli member slidable on the spindle to it into said annular groove.

2. The combination in a cap spinning trame having aliiter'plate, a spindle and a bobbin tube having a whirl slidable on said spindle, of a whirl lori( comprising a flat base adapted to rest on the lifter plate and having a slot oin a size to pass by the spindie, a stop linger extending upward and inward over a part oi the whirl, a foot which extends down and under the lifter plate, and an annular locking member with an axis which coincides with the spindle axis, with an annular' bolt member slidable on the spindie adapted to engage the annular locking member ito hold the whirl loci; in position.

3. rIhe combination in a cap spinning ira-me having` a lifter plate, a spindle and a bohbin tube having a whirl slidable on said spindle, oi a whirl lock comprising a flat base adapted to rest on the liiter plate and having a slot of a size to pass by the spindle,

ka stop iinger extending upward and inward over a part of the whirl and a foot which extends down and under `the rail, with means to hold the whirl lock in position.

et. The combination in a` cap spinning frame having a lifter plate, a spindle and a whirl slidable on said spindle, of a whirl lock comprising a flat base adapt-ed to rest on the liftei1 plate and having a slot of a size to pass by the spindle, a stop finger extending upward and inward over a part of the whirl and a foot which extends down and under the rail, with means to hold thewhirl lock in position.

In testimony whereof I have aiiixed my signature. Y

HARRY SLATER. 

